Vinzent Steinberg wrote:
> +1 for all changes, except for the removed test. In my opinion, it
> should be fixed or XFAILed.
> I'm sorry that parts of your module are broken and nobody noticed.
>
> Vinzent
>
> 2009/7/9 Alan Bromborsky <abro...@verizon.net>:
>   
>> Updates:
>>    Cc: abro...@verizon.net
>>
>> Comment #1 on issue 1517 by ondrej.certik: galgebra.GA docstrings
>> http://code.google.com/p/sympy/issues/detail?id=1517
>>
>> Two other things of note:
>> 1. I recently installed ubuntu 9.04 on my machine and could not install
>> git-gui (I had to do it from source).
>> 2. Under some conditions the recent implementation of the __or__
>> operator, "|" in sympy has broken my implementation of "|" as the inner
>> product of multivectors.  I am trying to find a simple example of under
>> what conditions this happens.  I fixed the problem in internal GA.py
>> calls by using the function I have __or__ call rather than use the
>> overloaded operator.
>>
>>     
>
> >
>
>   
What was did not work was not part of the GA module, but a scalar 
algebraic simplification on a scalar expression generated by the GA 
module (the scalar expression was correct).  Something had changed in a 
recent upgrade of sympy and the simplification method I was using no 
longer worked.   Also this test is too complicated to be in tests, it 
should only be in examples anyway.  

I will send a follow up email about the "|" operator (breakfast calls).

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